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WAEC Biology 2017 Question 43

Question 43

Variation

Use the diagram below. The type of variation illustrated above is

Diagram for this question
  1. A.continuous variation.
  2. B.discontinuous variation.
  3. C.morphological variation.
  4. D.environmental variation.
Show the answer and explanation

Answer: B (discontinuous variation.)

Explanation

The picture shows tongue rolling. A person either can or cannot roll the tongue, with no in-between, so it is discontinuous variation.